What matter is not the number of lines of code you write. IT's what value you create, how much revenue you generate, or help generate. You can have the worst code, and still make hundreds of millions of dollars. At the end of the day, for a business, that's what matters. Once you are coming to the scale of the code (modularity or lack thereof, etc), you can always rewrite.

Not directly about development, but this should be somewhat of a rule of thumb in general: https://www.slideshare.net/dmc500hats/best-strategy-is-speed...

Time is important. More important than you think.